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Thermoplastic transparent composition having ability to absorb light with wavelength of 410 nm and molded body thereof

A composition and thermoplastic technology, applied in the direction of synthetic resin layered products, optics, optical components, etc., can solve the problem that there is no effective absorption of transparent resin composition

Inactive Publication Date: 2008-02-06
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Such a resin composition containing an ultraviolet absorber and a thermoplastic resin is known, but there is no transparent resin composition that can effectively absorb and block light in the border region of the visible light and ultraviolet light regions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6、 comparative example 1～8

[0059] With respect to 100 parts by mass of (A) polycarbonate resin (PC-A2200 produced by Idemitsu Kosan Co., Ltd.), the (B) ultraviolet absorber was mixed in the mixing ratio shown in Table 1, and the 50mm single-screw extruder (NVC50) was used to Melt kneading at 280°C to make granules. The obtained pellets were injection-molded using a 440KN injection molding machine (manufactured by Toshiba Machine Co., Ltd., IS45PV) to obtain a test piece (30 mm×40 mm×2 mm) and a test piece (30 mm×40 mm×0.8 mm). Table 1 shows the evaluation results of the above-mentioned optical properties of the test pieces.

[0060] In addition, (B) ultraviolet absorber used in Table 1 is as follows.

[0061] B-0; diethylaminohydroxybenzoyl hexyl benzoate (manufactured by BAS Japan Co., Ltd., Yupina A, Plus, absorption band 250-410nm)

[0062] B-1; 2-(2'-hydroxy-5'-tert-octyl)benzotriazole (manufactured by Chemipro Chemical Co., Ltd., Kemisorb79, absorption band 260-400nm)

[0063] B-2; 2-(4,6-diphen...

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Abstract

Disclosed is a thermoplastic transparent composition containing 0.3-3.0 parts by mass of an ultraviolet absorbent (B) having an absorption band at least over a range of 340-410 nm when measured in a chloroform solution, per 100 parts by mass of a transparent thermoplastic resin (A). Also disclosed is a molded body of such a thermoplastic resin composition. The thermoplastic transparent composition is excellent in transparency, and has an ability to block light with a wavelength of 410 nm. This thermoplastic transparent composition can be widely used in various fields such as optical fields, electrical and electronic fields, and fields of material for medical use. For example, when the thermoplastic transparent composition is molded into a cover for an illuminating device, it enables to obtain an illuminating device with excellent insect repellent effect.

Description

technical field [0001] The present invention relates to a thermoplastic transparent composition that blocks light of a specific wavelength and its molded body, and more specifically relates to a thermoplastic transparent composition that absorbs light with a wavelength of 410 nm and is used in the optical field, electrical and electronic fields, and medical material fields, etc. objects and their shapes. Background technique [0002] 410nm wavelength light has a significant photosensitive effect on pests, etc. If a material that is transparent, thermoplastic, and able to block 410nm wavelength light can be developed, for example, applied to lighting fixture covers, it can also be developed into lighting fixtures with excellent insect resistance. Therefore, the development of this material is eagerly awaited. [0003] However, among the conventional ultraviolet absorbers, there is almost no transparent resin composition having absorption in the wavelength range of 400 nm or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00B32B27/36C08K5/00G02B1/04G02C7/02
CPCG02B1/041C08K5/005Y10T428/31507C08L69/00
Inventor 矶崎敏夫儿岛信之
Owner IDEMITSU KOSAN CO LTD
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